Apparatus for thermal deburring of parts

Abstract

An apparatus has a cylindrical working chamber (2) with a bottom member (7) provided with admission and discharge valves (3,5) and a spark plug (4). The bottom member (7) is made as a hollow cylinder having end plates and openings (8), the height and outside diameter of which are approximately equal to the height and inside diameter of the working chamber (2). Sealing rings (11, 12) are interposed between the chamber (2) and the hollow cylinder.

I claim: 
     
       1. An apparatus for thermal deburring of parts, comprising a cylindrical working chamber (2) with admission and discharge valves (3,5) and a spark plug (4), a bottom member (7) for closing and opening the chamber (2) provided with a worktable (9) for supporting parts (10) being treated, movably mounted along the axis of the chamber (2), and an elastic sealing ring (11) for sealing the joint between the bottom member (7) with the chamber (2), characterized in that the bottom member (7) comprising a hollow cylinder with end plates and openings (8) in the peripheral wall, the height and the outside diameter of the cylinder being approximately equal to the height and outside diameter of the working chamber (2), while the apparatus is provided with an additional sealing ring (12) interposed between the chamber (2) and the hollow cylinder on the side opposite to a loading hole in the chamber (2). 
     
     
       2. An apparatus according to claim 1, characterized in that it is provided with at least one split metal sealing ring (14) interposed between a chamber (13) and the hollow cylinder on the side of a loading hole of the chamber (13) behind the elastic sealing ring (11) in the direction from the edge of the chamber (13) toward the center thereof and a protective ring (16) for said split ring (14) slidably mounted along the surface of the hollow cylinder upon displacement of the latter, whereas used as an additional sealing ring is at least one split metal ring (19).